The Witch Navigator - A Low Cost GNSS Software Receiver for Advanced Processing Techniques

The developement of advanced GNSS signal processing algorithms such as multi-constellation, multi-frequency and multi-antenna navigation requires an easily reprogrammable software defined radio solution. Various receiver architectures for this purpose have been introduced. RF front-end with FPGA uni...

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Main Authors: O. Jakubov, P. Kovar, P. Kacmarik, F. Vejrazka
Format: Article
Language:English
Published: Spolecnost pro radioelektronicke inzenyrstvi 2010-12-01
Series:Radioengineering
Subjects:
Online Access:http://www.radioeng.cz/fulltexts/2010/10_04_536_543.pdf
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author O. Jakubov
P. Kovar
P. Kacmarik
F. Vejrazka
author_facet O. Jakubov
P. Kovar
P. Kacmarik
F. Vejrazka
author_sort O. Jakubov
collection DOAJ
description The developement of advanced GNSS signal processing algorithms such as multi-constellation, multi-frequency and multi-antenna navigation requires an easily reprogrammable software defined radio solution. Various receiver architectures for this purpose have been introduced. RF front-end with FPGA universal correlators on ExpressCard connected directly to PC was selected and manufactured. Such a~unique hardware combination provides the GNSS researchers and engineers with a~great convenience of writing the signal processing algorithms including tracking, acquisition and positioning in the Linux application programming interface and enables them to reconfigure the RF front-end easily by the PC program. With more of these ExpressCards connected to the PC, the number of the RF channels, correlators or antennas can be increased to further boost the computational power. This paper reveals the implementation aspects of the receiver, named the Witch Navigator, and~gives the key test results.
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spelling doaj.art-456e377627e94defac0a7910b68935882022-12-21T21:21:05ZengSpolecnost pro radioelektronicke inzenyrstviRadioengineering1210-25122010-12-01194536543The Witch Navigator - A Low Cost GNSS Software Receiver for Advanced Processing TechniquesO. JakubovP. KovarP. KacmarikF. VejrazkaThe developement of advanced GNSS signal processing algorithms such as multi-constellation, multi-frequency and multi-antenna navigation requires an easily reprogrammable software defined radio solution. Various receiver architectures for this purpose have been introduced. RF front-end with FPGA universal correlators on ExpressCard connected directly to PC was selected and manufactured. Such a~unique hardware combination provides the GNSS researchers and engineers with a~great convenience of writing the signal processing algorithms including tracking, acquisition and positioning in the Linux application programming interface and enables them to reconfigure the RF front-end easily by the PC program. With more of these ExpressCards connected to the PC, the number of the RF channels, correlators or antennas can be increased to further boost the computational power. This paper reveals the implementation aspects of the receiver, named the Witch Navigator, and~gives the key test results.www.radioeng.cz/fulltexts/2010/10_04_536_543.pdfGNSSUniversal CorrelatorGPSGalileoGLONASSCompassSDR
spellingShingle O. Jakubov
P. Kovar
P. Kacmarik
F. Vejrazka
The Witch Navigator - A Low Cost GNSS Software Receiver for Advanced Processing Techniques
Radioengineering
GNSS
Universal Correlator
GPS
Galileo
GLONASS
Compass
SDR
title The Witch Navigator - A Low Cost GNSS Software Receiver for Advanced Processing Techniques
title_full The Witch Navigator - A Low Cost GNSS Software Receiver for Advanced Processing Techniques
title_fullStr The Witch Navigator - A Low Cost GNSS Software Receiver for Advanced Processing Techniques
title_full_unstemmed The Witch Navigator - A Low Cost GNSS Software Receiver for Advanced Processing Techniques
title_short The Witch Navigator - A Low Cost GNSS Software Receiver for Advanced Processing Techniques
title_sort witch navigator a low cost gnss software receiver for advanced processing techniques
topic GNSS
Universal Correlator
GPS
Galileo
GLONASS
Compass
SDR
url http://www.radioeng.cz/fulltexts/2010/10_04_536_543.pdf
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